delete check-prefixes

Author: ylzsx

llvm/test/CodeGen/LoongArch/lsx/fp-max-min.ll

@@ -1,6 +1,6 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 6
-; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lsx < %s | FileCheck %s --check-prefixes=CHECK
-; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s --check-prefixes=CHECK
+; RUN: llc --mtriple=loongarch32 --mattr=+32s,+lsx < %s | FileCheck %s
+; RUN: llc --mtriple=loongarch64 --mattr=+lsx < %s | FileCheck %s
 
 define void @minnum_v4f32(ptr %res, ptr %x, ptr %y) nounwind {
 ; CHECK-LABEL: minnum_v4f32: